88 lines
2.0 KiB
C++
88 lines
2.0 KiB
C++
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#include "vtr_path.h"
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#include "vtr_util.h"
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//TODO: currently this file assumes unix-like
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// in the future support windows
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#include <unistd.h>
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#include <sstream>
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namespace vtr {
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const std::string PATH_DELIM = "/";
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//Splits off the name and extension (including ".") of the specified filename
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std::array<std::string,2> split_ext(const std::string& filename) {
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std::array<std::string,2> name_ext;
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auto pos = filename.find_last_of('.');
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if (pos == std::string::npos) {
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//No extension
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pos = filename.size();
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}
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name_ext[0] = std::string(filename, 0, pos);
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name_ext[1] = std::string(filename, pos, filename.size() - pos);
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return name_ext;
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}
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std::string basename(const std::string& path) {
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auto elements = split(path, PATH_DELIM);
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std::string str;
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if(elements.size() > 0) {
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//Return the last path element
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str = elements[elements.size() - 1];
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}
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return str;
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}
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std::string dirname(const std::string& path) {
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auto elements = split(path, PATH_DELIM);
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std::string str;
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if(elements.size() > 0) {
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//We need to start the dirname with a PATH_DELIM if path started with one
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if(starts_with(path, PATH_DELIM)) {
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str += PATH_DELIM;
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}
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//Join all except the last path element
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str += join(elements.begin(), elements.end() - 1, PATH_DELIM);
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//We append a final PATH_DELIM to allow clients to just append directly to the
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//returned value
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str += PATH_DELIM;
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}
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return str;
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}
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std::string getcwd() {
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constexpr size_t BUF_SIZE = 500;
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char buf [BUF_SIZE];
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if (::getcwd(buf, BUF_SIZE)) {
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return std::string(buf);
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}
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//Check the global errno
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int error = errno;
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switch (error) {
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case EACCES:
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throw std::runtime_error("Access denied");
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default: {
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std::stringstream str;
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str << "Unrecognised error" << error;
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throw std::runtime_error(str.str());
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}
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}
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}
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} //namespace
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